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    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
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  <body>
    <div id="app">
      <span v-if="true">aaa</span>
      <span v-if="false">bbb</span>
      <span v-if="isShow">ccc</span>
    </div>

    <script src="../lib/vue.js"></script>

    <script>
      new Vue({
        el: '#app',
        data: {
          isShow: false,
        },
      })
    </script>
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